/Engine/Source/Editor/UnrealEd/Public/DragAndDrop/LevelDragDropOp.h
class FLevelDragDropOp : public [FDecoratedDragDropOp](API\Editor\UnrealEd\DragAndDrop\FDecoratedDragDropOp)
bool
bGoodToDrop
Whether content is good to drop on current site, used by decorator
TArray<TWeakOb...
LevelsToDrop
The levels to be dropped.
TArray<TWeakOb...
StreamingLevelsToDrop
The streaming levels to be dropped.